There are no cheap solutions for really reliable rf feeds for video. I used the predecessor to the current Camwave when fitting out a wireless video system for a mobile videoconference cart in a large museum and it was very reliable and stable, but it's not cheap. I tried all the cheap solutions and they're not stable.Since this is for one job you should consult one of the broadcast rental houses in NYC, such as Bexel or any of the others to rent the right solution for your event. Good luck.